The function is now open beta
Didier Roche said: “If the device to the maximum volume can not let you satisfied, then PulseAudio can help you to enlarge some.”
If you are using Ubuntu 17.10 (Artful Aardvark) on your PC, you can add Canonical’s official Ubuntu Desktop Team Transitions PPA to the repository and execute the following command to update it:
After installing the PPA and upgrading the Ubuntu 17.10 operating system, you can override the 100% volume limit via the media key (or the physical / dedicated volume adjustment button). But do not forget to enable the option “Allow more than 100% of the volume” under the voice panel of the GNOME Control Center.